Only four states have had longer periods since Democrats last held both seats.
Though none of these seven deaths were attributed to Spanish flu.
No sitting or former Montana governor has been elected to the U.S. Senate.
The political party flipping the White House has only made gains in the U.S. Senate in six of 11 cycles over the last century.
Seven states have elected U.S. Senators into the majority party of the subsequent Congress 70+ percent of the time over the last century, but no state has done so in each of its last four elections.
The Democratic duo from the Evergreen State will become just the second state delegation of women U.S. Senators to serve 20+ years together.
The 12-year gap between no GOP and Democratic Arkansas U.S. Senate nominees will be the shortest in the direct election era.
Only one (non-U.S. Senator) presidential candidate has ended the bid to run for the U.S. Senate in the same cycle since 1972.
Since 1982, incumbent Democratic U.S. Senators have won 263 of 266 nomination bids.
Fourteen have been elected to the senate during the last three cycles.